Epson Expression 1680 - Manual (Page 26)

2-6 Understanding EPSON TWAIN Pro Features
Image Type button
The Image Type button opens the Image Type dialog box, where
you can customize the Image Type settings described in this
section.
To save the settings you made as a group of custom settings, type
a new name in the Image Type Name box, then click
Save . To
delete a custom Image Type setting, select the setting name then
click
Delete .
To apply the settings you made, click OK . You can see the effects
of all settings except B/W Option in the Preview window. Click
the
Preview button in the main dialog box to open this window.
Image Type Name
The names of predefined settings and any custom settings you
have saved appear in the Image Type Name list.